2009 GMC Sierra Light Duty Crew Cab - Curb Weight & Payload
  GVWR (lb / kg) Base Curb Weight (lb / kg)* Max. Payload (lb / kg)* Weight Distribution (% front / rear)
2WD
Crew Cab Short Box 6800 / 3084 5156 / 2338 1644 / 745 58 / 42
Denali 6800 / 3084 5181 / 2350 1619 / 734 58 / 42
4WD
Crew Cab Short Box 7000 / 3175 5286 / 2397 1714 / 777 58 / 42
Denali 7000 / 3175 5408 / 2453 1592 / 722 58 / 42
*5.3L w/ four-spd transmission (except Denali)

Chassis/Suspension
Front: All models: independent coil-over-shock; monotube shock absorbers
Rear: All models: solid axle with semi-elliptic, variable-rate, two-stage multileaf springs; splayed shock absorbers; monotube shocks
Steering type: power-assisted rack-and-pinion
Steering ratio: 16.73:1
Steering wheel turns, lock-to-lock: 3
Turning circle, curb-to-curb (ft / m)
2WD/4WD Crew cab short box: 47.2 / 14.4
Brakes
Type: power-assisted, four-wheel disc, four-wheel ABS; or power-assisted, front disc/rear drum, four-wheel ABS
Rotor diameter x thickness (in / mm) disc/drum brakes: front: 12.99 x 1.18 / 330 x 30
rear:11.61 x 2.36 / 295 x 60
4-wheel disc: front: 13 x 1.18 / 330 x 30
rear: 13.5 x 0.79 / 343 x 20
Total swept area (sq in / sq cm)
disc/drum brakes: front: 301.2 / 1944
rear: 172.4 / 1112
4-wheel disc: front: 257 / 1656
rear: 113 / 732
Wheels/Tires
Wheel 17 x 7.5-in steel
17 x 7.5-in chrome-style steel
17 x 7.5-in polished cast aluminum
18 x 8-in chrome-clad aluminum
18 x 8-in chromed aluminum (std. Denali)
20 x 8.5-in chrome-clad aluminum
20 x 8.5-in chromed aluminum (opt. Denali)
Tires P24570R17 all season blackwall or white letter
P265/70R17 AL2, blackwall or white letter
P265/70R17 on/off road, blackwall or white letter
P265/65R18 AL2, blackwall (Denali)
P265/65R18 all season, blackwall or white letter
P275/55R20 AL2 touring blackwall

Trailering
Trailer towing maximum with ball hitch (lb / kg):
Crew Cab, Short Box 2WD:9600 / 4354 (5.3L w/ HD cooling, 6-spd and 3.42 axle OR 6.0L w/ HD cooling, 6-spd and 3.42 axle)
4WD:9500 / 4309 (5.3L w/ HD cooling, 6-spd and 3.42 axle OR 6.0L w/ HD cooling, 6-spd and 3.42 axle)
Crew Cab, Short Box (w/ enhanced trailering pkg.) 2WD: 10600 / 4808 (6.0L w/ 3.73 axle)
4WD: 10400 / 4717 (6.0L w/ 3.73 axle)
Denali 2WD: 9600 / 4354 (6.2L w/ HD cooling and 3.42 axle)
AWD: 9300 / 4218 (6.2L w/ HD cooling and 3.42 axle)
* SAE certified